docstr: Returns the word of the specified index.
docstr_tok: ["Returns","the","word","of","the","specified","index","."]
code: def __getitem__(self, i):
      """
      Returns the word of the specified index.
      """
      return self.id2word[i]
  
file_path: pytext/pytext/data/xlm_dictionary.py
imports: import os
  from logging import getLogger
  import numpy
  import torch
  from pytext.utils.file_io import PathManager
label_desc: Use image node_id 3 for calling the Dictionary obj's underlying member method code with example usage: obj.__getitem__(i) and returns: self